Metal mold self-opening device

Abstract

The utility model discloses an automatic mold opening device for a metal mold. The automatic mold opening device comprises a processing platform, a lower mold, an upper mold and an ejector plate, a lower mold with an upward opening is horizontally and fixedly arranged at the upper end of the machining platform, and an upper mold which is provided with a downward opening and can cover the lower mold is horizontally arranged above the machining platform through a driving assembly in a liftable mode. An ejector plate capable of ascending along with the upper mold to eject a formed blank batch out of an opening of the upper mold is arranged in the lower mold in a liftable manner; the driving assembly comprises a screw rod, a lifting plate and a linkage mechanism; according to the automatic mold opening device for the metal mold, the upper mold can be automatically driven to ascend through the driving assembly, the ejector plate can be driven to eject a formed blank out of the lower mold during ascending, unloading is convenient, time and labor are saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a metal mold self-opening device. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. They are tools that make the blank into a workpiece with a specific shape and size under the action of external force. They are widely used in blanking, die forging, cold heading, extrusion, powder metallurgy pressing, and pressure casting. The mold has a specific contour or inner cavity shape. The use of a contour shape with a cutting edge can make the blank separate (blanking) according to the shape of the contour line. The use of the inner cavity shape can make the blank obtain the corresponding three-dimensional shape. The mold generally consists of two parts: a movable mold and a fixed mold (or a punch and a die), which can be separated or combined. When separated, the workpiece is taken out, and when closed, the blank is injected into the mold cavity for forming.

[0003] After searching: Chinese patent application number is "CN202020995122.X", which discloses a mold opening device, including a lower mold, an upper mold and a through pipe, the upper mold is located at the top of the lower mold, the top of the front surface of the lower mold is provided with a second empty groove, and the bottom of the front surface of the upper mold is provided with a first empty groove. By manually rotating the rotating shaft, the rotating shaft drives the rotating shaft to rotate through the cooperation of the first bevel gear and the second bevel gear, and the rotating shaft drives the second gear to rotate during the rotation of the rotating shaft, and the second gear drives the first gear in the inner cavity of the gear groove to rotate. When the first gear rotates, it drives the double-threaded rod to rotate, and the lower mold and the upper mold can be pushed to achieve the purpose of mold opening.

[0004] In the process of implementing the present invention, the inventor found that the prior art has the following problems:

[0005] During use, the mold needs to be opened manually, and the rotating shafts on both sides of the mold need to be manually rotated at the same time to achieve the mold opening, which is time-consuming and labor-intensive, and has a single function.

[0006] Therefore, it is an urgent problem to be solved by the utility model to provide a metal mold self-opening device which can automatically drive the upper mold to rise through a driving component during use, and at the same time drive the ejector plate to eject the formed batch of blanks from the lower mold, thereby facilitating unloading, saving time and effort, and improving work efficiency. Utility Model Content

[0007] In view of the above technical problems, the purpose of the utility model is to overcome the problem in the prior art that manual mold opening is required, and the rotating shafts on both sides of the mold must be manually rotated at the same time to achieve mold opening, which is time-consuming, labor-intensive, and has a single function. Thus, a metal mold self-opening device is provided, which can automatically drive the upper mold to rise through a driving component during use, and at the same time drive the ejector plate to eject the formed batch from the lower mold, thereby facilitating unloading, saving time and effort, and improving work efficiency.

[0008] In order to achieve the above-mentioned purpose, the utility model provides a metal mold self-opening device, which comprises: a processing platform, a lower mold, an upper mold and a top plate;

[0009] A lower mold with an opening facing upward is fixedly arranged horizontally on the upper end of the processing platform, an upper mold with an opening facing downward and capable of covering the lower mold is arranged horizontally and liftably above the processing platform through a driving component, and a ejector plate capable of rising together with the upper mold to eject the formed blank batch from its opening is arranged liftably inside the lower mold, and the driving component includes: a screw rod, a lifting plate and a linkage mechanism; wherein,

[0010] At least two screw rods are vertically and rotatably arranged at the upper ends of the processing platforms located on both sides of the lower mold, and lifting plates that can be lifted and lowered horizontally along their shafts are horizontally and threadedly arranged on the two screw rods. The upper mold is fixed on the lifting plates, and the linkage mechanism can drive the two screw rods to rotate synchronously.

[0011] Preferably, the ejector plate is connected to the drive assembly via a connecting assembly.

[0012] Preferably, the connecting assembly comprises: a push rod, a linkage plate, a linkage rod and a stop plate; wherein,

[0013] At least two linkage rods that can respectively pass through the processing platform and extend to the bottom thereof are spaced apart and vertically fixed on the lifting plates on both sides of the lower mold, a stop plate is horizontally fixed on the bottom end of each linkage rod, and linkage plates are horizontally and liftably arranged on the two linkage rods located between the processing platform and the stop plate, and a plurality of push rods that can pass through the bottom of the lower mold and be fixed on the linkage plate are vertically and fixedly arranged at the bottom end of the ejecting plate.

[0014] Preferably, each of the push rods is sleeved with a return spring, and both ends of each of the return springs are respectively fixed to the processing platform and the linkage plate.

[0015] Preferably, the linkage mechanism comprises: a driving motor and a chain; wherein,

[0016] Two fixed frames are vertically fixed on the upper ends of the processing platforms located on both sides of the lower mold, and a screw rod is vertically and rotatably arranged inside each of the fixed frames. The bottom end of any one of the screw rods is coaxially connected to a driving motor vertically fixed in the fixed frame through a coupling, and a chain is assembled on the tops of the two screw rods through sprockets.

[0017] Preferably, a material injection port communicating with the interior of the upper mold is provided at the top of the upper mold.

[0018] According to the above technical solution, the beneficial effects of the metal mold self-opening device provided by the utility model when used are as follows:

[0019] (1) The utility model drives the lifting plate to drive the upper mold thereon to descend in the longitudinal direction and to make the upper mold abut against the lower mold through a linkage mechanism. Since the ejector plate can be lifted and lowered together with the upper mold, when the upper mold descends and abuts against the lower mold, the ejector plate can be dropped to the bottom of the lower mold, so that the upper mold, the lower mold and the ejector plate are spliced ​​to form a molding cavity with a certain space, so that liquid blanks can be injected into the molding cavity formed by the upper mold and the lower mold, and finally the required blank batch is formed.

[0020] (2) The utility model drives the two screw rods to rotate synchronously through a linkage mechanism to drive the upper mold to rise so as to separate the upper mold from the lower mold and realize the mold opening operation. During the mold opening process, the ejector plate can rise together with the upper mold and eject the formed batch of blanks from the opening of the lower mold so that the staff can take out the batch of blanks on the ejector plate, which is convenient for unloading, saves time and effort, reduces the workload of the staff, and improves work efficiency.

[0021] Therefore, the utility model can automatically drive the upper mold to rise through the driving component, and at the same time, can drive the ejector plate to eject the formed batch of blanks from the lower mold, which is convenient for unloading, saves time and labor, and improves work efficiency.

[0022] Other features and advantages of the utility model will be described in detail in the subsequent specific implementation mode; and the parts not involved in the utility model are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0024] Figure 1It is a structural schematic diagram of a metal mold self-opening device provided in a preferred embodiment of the utility model;

[0025] Figure 2 It is a schematic diagram of the internal structure of a metal mold self-opening device provided in a preferred embodiment of the utility model;

[0026] Figure 3 It is a structural schematic diagram of a metal mold self-opening device provided in a preferred embodiment of the utility model at a certain moment in the mold opening process;

[0027] Figure 4 It is a structural schematic diagram of another moment of the metal mold self-opening device during the mold opening process provided in a preferred embodiment of the utility model.

[0028] Description of Reference Numerals

[0029] 1. Processing platform; 2. Lower mold; 3. Upper mold; 4. Ejector plate; 5. Injection port; 6. Connecting assembly; 601. Ejector rod; 602. Linkage plate; 603. Linkage rod; 604. Stop plate; 7. Reset spring; 8. Driving assembly; 801. Screw rod; 802. Lifting plate; 803. Linkage mechanism; 8031. Driving motor; 8032. Chain; 9. Fixed frame. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0031] like Figure 1-4 As shown, the utility model provides a metal mold self-opening device, which includes: a processing platform 1, a lower mold 2, an upper mold 3 and a top plate 4;

[0032] A lower mold 2 with an opening facing upward is fixedly arranged horizontally on the upper end of the processing platform 1. An upper mold 3 with an opening facing downward and capable of covering the lower mold 2 is arranged horizontally and liftably above the processing platform 1 through a driving component 8. A ejector plate 4 is liftably arranged inside the lower mold 2 and can rise together with the upper mold 3 to eject the formed blank batch from its opening. The driving component 8 includes: a screw 801, a lifting plate 802 and a linkage mechanism 803; wherein,

[0033] At least two screw rods 801 are vertically and rotatably provided at the upper ends of the processing platform 1 located on both sides of the lower mold 2, and a lifting plate 802 that can be lifted and lowered horizontally along its axis is horizontally and threadedly provided on the two screw rods 801. The upper mold 3 is fixed on the lifting plate 802, and the linkage mechanism 803 can drive the two screw rods 801 to rotate synchronously.

[0034] In the above scheme, the upper and lower ends of the lower mold 2 can be open, or only the upper end can be open. When the upper and lower ends of the lower mold 2 are both open, the initial position of the top plate 4 is at the open bottom end of the lower mold 2 and is horizontally against the processing platform 1. When the upper ends of the lower mold 2 are both open, the initial position of the top plate 4 is horizontally against the bottom end of the lower mold 2.

[0035] In the above solution, threaded holes matching the two screw rods 801 are arranged at intervals and vertically penetrate the lifting plate 802 , and the lifting plate 802 is horizontally assembled on the two screw rods 801 through the two threaded holes.

[0036] When in use, the lifting plate 802 is driven by the linkage mechanism 803 to drive the upper mold 3 thereon to descend in the longitudinal direction and make the upper mold 3 abut against the lower mold 2. Since the top plate 4 can be lifted and lowered together with the upper mold 3, when the upper mold 3 descends and abuts against the lower mold 2, the top plate 4 can also be lowered to the bottom of the lower mold 2, so that the upper mold 3, the lower mold 2 and the top plate 4 are spliced ​​to form a molding cavity with a certain space, so as to inject liquid blank into the molding cavity formed by the upper mold 3 and the lower mold 2, and finally form the required blank batch.

[0037] The two screw rods 801 are then driven to rotate synchronously through the linkage mechanism 803 to drive the upper mold 3 to rise so as to separate the upper mold 3 from the lower mold 2 to realize the mold opening operation. During the mold opening process, the ejector plate 4 can rise together with the upper mold 3 and eject the formed batch of blanks from the opening of the lower mold 2, so that the staff can take out the batch of blanks on the ejector plate 4, which is convenient for unloading, saves time and effort, reduces the workload of the staff, and improves work efficiency.

[0038] In a preferred embodiment of the present invention, the ejection plate 4 is connected to the driving assembly 8 via a connecting assembly 6 .

[0039] In the above scheme, the ejector plate 4 is connected to the driving component 8 via the connecting component 6, so that the driving component 8 drives the ejector plate 4 to move up and down during the process of driving the upper mold 3 to move up and down.

[0040] In a preferred embodiment of the present invention, the connecting assembly 6 comprises: a push rod 601, a linkage plate 602, a linkage rod 603 and a stop plate 604; wherein,

[0041] At least two linkage rods 603 that can respectively pass through the processing platform 1 and extend to the bottom thereof are spaced apart and vertically fixed on the lifting plates 802 located on both sides of the lower mold 2, and a stop plate 604 is horizontally fixedly provided at the bottom end of each linkage rod 603. Linkage plates 602 are horizontally and liftably provided on the two linkage rods 603 located between the processing platform 1 and the stop plate 604. A plurality of push rods 601 that can pass through the bottom of the lower mold 2 and be fixed on the linkage plate 602 are vertically and fixedly provided at the bottom end of the ejection plate 4.

[0042] In the above solution, a guide rod 603 is vertically penetrated through the processing platform 1 for the linkage rod 603 to pass through.

[0043] In the above scheme, when used, Figure 2-4 As shown in the figure, in the process of driving the upper mold 3 to rise in the vertical direction by the driving assembly 8, the specific process of its rising is as follows: when the lifting plate 802 drives the upper mold 3 to rise, it also drives the multiple linkage rods 603 to rise, and because the stop plate 604 on the bottom end of each linkage rod 603 is not in contact with the linkage plate 602, therefore, after the lifting plate 802 drives the upper mold 3 to rise to its bottom opening and separates from the formed billet batch, the ejector plate 4 remains stationary. On the basis of the above, when the lifting plate 802 drives the upper mold 3 and the multiple linkage rods 603 to continue to rise, the upper mold 3 and the multiple linkage rods 603 are driven to rise. During the lifting process, the stop plate 604 on the bottom end of each linkage plate 603 abuts against the linkage plate 602, so that the linkage plate 602 is placed on the multiple stop plates 604 on the bottom of the multiple linkage rods 603, so that when the lifting plate 802 drives the upper mold 3 to rise, the linkage plate 602 is pulled up together under the action of the multiple linkage rods 603 and the stop plates 604 at their ends, so as to push the push rod 601 to drive the ejection plate 4 to eject the batch of blanks formed thereon from the lower mold 2 in the vertical direction, so that the staff can take the material.

[0044] When the material is taken, the lifting plate 802 is driven to drive the upper mold 3 to descend in the vertical direction, and the ejector plate 4 and the linkage plate 602 descend in the vertical direction to and restore their respective initial positions under the action of their own gravity.

[0045] In a preferred embodiment of the present utility model, each of the push rods 601 is sleeved with a return spring 7 , and both ends of each of the return springs 7 are respectively fixed to the processing platform 1 and the linkage plate 602 .

[0046] In the above solution, the reset spring 7 has a reset function for the ejection plate 4 .

[0047] During use, when the lifting plate 802 drives the upper mold 3 upward in the vertical direction to leave the lower mold 2, the linkage plate 602 can be driven to rise through the multiple linkage rods 603. During the rising process, the linkage plate 602 pushes the push rod 601 to drive the ejection plate 4 to eject the formed blank from the lower mold 2. During the ejection process, the return spring 7 is in a compressed state. When the lifting plate 802 drives the upper mold 3 to move downward in the vertical direction, the ejection plate 4 descends in the vertical direction under the action of its own gravity and the return spring 7 and descends to the bottom of the lower mold 2, so that the ejection plate 4 returns to its original position.

[0048] In a preferred embodiment of the present utility model, the linkage mechanism 803 includes: a driving motor 8031 ​​and a chain 8032; wherein,

[0049] Two fixed frames 9 are vertically fixed on the upper ends of the processing platform 1 located on both sides of the lower mold 2, and a screw rod 801 is vertically and rotatably arranged inside each of the fixed frames 9. The bottom end of any one of the screw rods 801 is coaxially connected to a driving motor 8031 ​​vertically fixed in the fixed frame 9 through a coupling, and a chain 8032 is assembled on the tops of the two screw rods 801 through sprockets.

[0050] In the above solution, sprockets are coaxially fixedly provided on the tops of the two screw rods 801, and the two sprockets are connected together by a chain.

[0051] When in use, the driving motor 8031 ​​is started to drive the screw rod 801 coaxially connected thereto to rotate, and under the transmission action of the chain, the other screw rod 801 rotates along with it, thereby making the two screw rods 801 rotate synchronously to drive the lifting plate 802 to move up and down in the vertical direction.

[0052] In a preferred embodiment of the present invention, a material injection port 5 communicating with the interior of the upper mold 3 is provided at the top of the upper mold 3 .

[0053] In the above scheme, the liquid blank is conveniently injected into the molding cavity formed by the upper mold 3, the lower mold 2 and the ejector plate 4 through the injection port 5 to form a blank batch.

[0054] In summary, the metal mold self-opening device provided by the utility model overcomes the problem that the mold opening in the prior art requires manual mold opening, and the rotating shafts on both sides of the mold must be manually rotated at the same time to achieve mold opening, which is time-consuming and labor-intensive, and has a single function.

[0055] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0056] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0057] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A metal mold self-opening device, characterized in that: The metal mold self-opening device comprises: a processing platform (1), a lower mold (2), an upper mold (3) and a ejector plate (4); A lower mold (2) with an opening facing upward is fixedly arranged horizontally on the upper end of the processing platform (1); an upper mold (3) with an opening facing downward and capable of covering the lower mold (2) is arranged horizontally and liftably above the processing platform (1) through a driving assembly (8); a lifting plate (4) is liftably arranged inside the lower mold (2) and can rise together with the upper mold (3) to eject the formed blank batch from its opening; the driving assembly (8) comprises: a screw (801), a lifting plate (802) and a linkage mechanism (803); wherein, At least two screw rods (801) are vertically and rotatably arranged at the upper ends of the processing platform (1) located on both sides of the lower mold (2), and lifting plates (802) that can be lifted and lowered horizontally along their shafts are horizontally and threadedly arranged on the two screw rods (801). The upper mold (3) is fixed on the lifting plates (802), and the linkage mechanism (803) can drive the two screw rods (801) to rotate synchronously.

2. The metal mold self-opening device according to claim 1, characterized in that: The ejector plate (4) is connected to the drive assembly (8) via a connecting assembly (6).

3. The metal mold self-opening device according to claim 2, characterized in that: The connecting assembly (6) comprises: a push rod (601), a linkage plate (602), a linkage rod (603) and a stop plate (604); wherein: At least two linkage rods (603) that can respectively pass through the processing platform (1) and extend to the bottom thereof are spaced apart and vertically fixed on the lifting plate (802) located on both sides of the lower mold (2); a stop plate (604) is horizontally fixedly arranged at the bottom end of each linkage rod (603); linkage plates (602) are horizontally and liftably arranged on the two linkage rods (603) located between the processing platform (1) and the stop plate (604); and a plurality of push rods (601) that can pass through the bottom of the lower mold (2) and be fixed on the linkage plate (602) are vertically and fixedly arranged at the bottom end of the ejection plate (4).

4. The metal mold self-opening device according to claim 3, characterized in that: Each of the push rods (601) is sleeved with a return spring (7), and the two ends of each of the return springs (7) are respectively fixed on the processing platform (1) and the linkage plate (602).

5. The metal mold self-opening device according to claim 1, characterized in that: The linkage mechanism (803) comprises: a driving motor (8031) and a chain (8032); wherein: Two fixed frames (9) are respectively and vertically fixedly arranged at the upper ends of the processing platform (1) located on both sides of the lower mold (2), and a screw rod (801) is respectively and vertically and rotatably arranged inside each of the fixed frames (9). The bottom end of any one of the screw rods (801) is coaxially connected to a driving motor (8031) vertically fixed in the fixed frame (9) through a coupling, and a chain (8032) is assembled at the tops of the two screw rods (801) through sprockets.

6. The metal mold self-opening device according to claim 1, characterized in that: The top of the upper mold (3) is provided with an injection port (5) which is connected to the interior thereof.

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